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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { unitTest, assertThrows } from "./test_util.ts";
unitTest(function streamReadableHwmError() {
const invalidHwm = [NaN, Number("NaN"), {}, -1, "two"];
for (const highWaterMark of invalidHwm) {
assertThrows(
() => {
new ReadableStream<number>(
undefined,
// @ts-ignore
{ highWaterMark }
);
},
RangeError,
"highWaterMark must be a positive number or Infinity. Received:"
);
}
assertThrows(() => {
new ReadableStream<number>(
undefined,
// @ts-ignore
{ highWaterMark: Symbol("hwk") }
);
}, TypeError);
});
unitTest(function streamWriteableHwmError() {
const invalidHwm = [NaN, Number("NaN"), {}, -1, "two"];
for (const highWaterMark of invalidHwm) {
assertThrows(
() => {
new WritableStream(
undefined,
// @ts-ignore
new CountQueuingStrategy({ highWaterMark })
);
},
RangeError,
"highWaterMark must be a positive number or Infinity. Received:"
);
}
assertThrows(() => {
new WritableStream(
undefined,
// @ts-ignore
new CountQueuingStrategy({ highWaterMark: Symbol("hwmk") })
);
}, TypeError);
});
unitTest(function streamTransformHwmError() {
const invalidHwm = [NaN, Number("NaN"), {}, -1, "two"];
for (const highWaterMark of invalidHwm) {
assertThrows(
() => {
new TransformStream(
undefined,
undefined,
// @ts-ignore
{ highWaterMark }
);
},
RangeError,
"highWaterMark must be a positive number or Infinity. Received:"
);
}
assertThrows(() => {
new TransformStream(
undefined,
undefined,
// @ts-ignore
{ highWaterMark: Symbol("hwmk") }
);
}, TypeError);
});
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